Chipper was 2+ years old when he first arrived here in Feb. 2007 as a wary stray. His whiskers have always been all black, except for one single white whisker. Within the last year or so most of his whiskers have changed color! The majority are now white. At the very most he is 11 years old, but I think more likely he is about 9. He is a black cat with some white on chest & belly. There are some white hairs starting to show in his fur, as happens to black cats as they get older, but not a lot. Has anyone else ever had a cat whose whiskers changed color? Maybe it's age related, like graying?